Improvement in sash and door bolts



UNITED STATES PATENT OFFICE.v

H. T. WOODMAN,OF DUBUQUE, IOWA.

IMPROVEMENT IN SASH AND DOOR BOLTS.

Specification forming part of Letters Patent NO. 55,410, dated June 5, 1866.

To all whom it may concern:

Be it known that I, H. T. WOODMAN, of Dubuque, Dubuque county, State of Iowa, have invented new and useful Improvements vin'Door and I/Vindow Bolts; and I do hereby declare that the following is a full, clear, and yexact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

The present invention consists in so connecting the bolt with a suitable handle or knob for operating the same by turnin git in the proper directions that when the bolt is thrown out it cannot be pushed or forced in, as will be hereinafter described, reference being had to the accompanying plate of drawings, of which- Figure l is a view showing two bolts arranged according to my improvements; Fig. 2, a view showing the cutting out of the door or window for the reception of the same, Figs. 3, 4, and 5, views showing the connections for one bolt, with its handle or knob for operating the same; Figs. 6, 7, 8, and 9, detail views of portions of the bolt-connections, knob, and a key to be used in place of the knob.

Similar letters of reference indicate like parts.

A in the drawings represents the bolt, arranged within a slotted casing or sleeve, B, in which it slides or moves freely; C, a lug formed on the bolt A or near its outer end, to which lug is hung one end of a connecting link'or rod, D, hung at its other end to the outer end Of a crank-arm, E, of a hollow shaft or spindle, F, turning in bearings of the projections G of the bolt casing Or sleeve B. This hollow shaft F is made of a square shape through its center, in Which tits the square spindle H of the knob or handle I, this knob being On the outside of the window or door.

By turning the knob inthe proper directions it is obvious that the bolt A, through the connections described, will be either thrown out or drawn in, as the case may be, the bolt, when thrown out, being prevented from being pushed or forced in by forming an aperture, a', in its casing, so as to allow the crank-arm E to pass sufficiently by the center of its spindle F and come to a bearing or stop against the bolt A, as is manifest without further explanation and by an inspection of Fig. 3 of the drawings.

In Fig. l two bolts are shown as connected together through wires or rods L L, hung to each end of their double-crank arms M, On their respective shafts E, (the same arrange ment of the bolts Otherwise being used to that hereinbefore above explained,) so th at byturning the handle attached to 4either one of the said two bolts they will be both similarly and simultaneously Operated.

In lieu of attaching a knob or handle to the bolts, as explained, a key such as shown in Fig. 9' may be used, which in many cases might be deemed more expedient, as it renders the withdrawal of the bolt without such key or its equivalent an impossibility, except the window in which it is inserted be cut away, the advantages and importance'of which are apparent.

I claim as new and desire to secure by Letters Patent- The combination of the bolt A, slotted sleeve or casing B, connecting link or rod D, and crank-arm E of shaft or spindle F, suitably formed for receiving'a handle, knob, key, or other equivalent device, when arranged together so as to Operate substantially in the manner described, and for the purpose specified.

H. T. WOODMAN. Witnesses:

J. W. B. COVINGTON, J. M. COVINGTON. 

